Eaton Crouse-Hinds series Arktite CPP plug, 7A/30A, 0.375-0.875" cable diameter, Two-wire, three-pole, Brass contacts, 60 Hz, Style 2, 0.5 HP/1.5 HP, Copper-free alum, Factory sealed, Delayed action circuit breaking, 125-250 Vac/480 Vac